Question

Below, the two-way table is given for a class

of students.
Freshmen
Sophomore
Juniors Seniors Total
Male.
4
6
2
2
Female 3
4
6
3
Total
If a student is selected at random, find the
probability the student is a senior.
P(Senior) = [?]%
Round to the nearest whole percent.
Entor

Answer 1

17%

Explanation:

total number of students= 4+6+2+2+3+4+6+3 = 30

number of senior students = 2 + 3 = 5

P(E) = Favourable outcomes/ total number of outcomes

P(Senior) = number of senior students/total number of students

= (5/30)

to get percent multiply it by 100

= (5/30) × 100

= 0.167 × 100

= 16.7%

= 17% (after rounding to nearest whole percent)